The Intuit Multi-State Settlement agreement with the attorneys general of the states is not a class action lawsuit. Are you talking about the Multi-State Settlement agreement or some other lawsuit?
Please see the settlement web site for all questions about settlement payments. Note the following statements from that web site.
"Consumers to Receive Payments Automatically, Without Filing a Claim"
"The settlement is being administered by a third-party administrator, please do not contact Intuit [TurboTax] with questions."
You should also look at the Common Questions on the settlement web site.
The checks are being sent by the settlement administrator, not by TurboTax.
If you have not received a payment, it's probably because you are not a Covered Consumer. But if you think you are a Covered Consumer, and you have not received a payment, you have to contact the settlement administrator as instructed on the settlement web site.
